Answer:
an enormous number of southerners, many of them enslaved, moved west to expand the cotton belt. The 1860 census counted 169,000 enslaved persons, roughly 30% of the state population. After the civil war, whites continued to arrive from nearby southern states, causing the population to double by 1880 and double again in the following twenty years. African Americans contributed little to this late 19th century migration.
Explanation:
Diencephalon is referred to as the between brain.
An Oasis because a gravel-covered plain would hurt there feet.A salted crusted flat is dangers if one little piece of water touches the salt could ruin the whole area.A rocky plateau they would have have to climb up and down the plateau and they could get hurt.A Oasis has pure water,and enough trees to keep most or all the air pure, and almost to no dangers animals
